1685633 - Some YouTube videos no longer play when media.ffmpeg.vaapi.enabled is set to true

Status: RESOLVED DUPLICATE of bug 1685436

(Core :: Audio/Video: Playback, defect)

Description

[Cole]

Attachment: MOZ_LOG="PlatformDecoderModule:5"

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:86.0) Gecko/20100101 Firefox/86.0

Steps to reproduce:

Ubuntu 20.10 wayland
Lenovo Yoga 710-11ISK intel m3-6Y30

$ vainfo
libva info: VA-API version 1.8.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_8
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.8 (libva 2.8.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 20.2.0 ()
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSliceLP
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSliceLP
VAProfileJPEGBaseline : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointEncPicture
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
VAProfileVP8Version0_3 : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointVLD

After updating nightly to 01-07-2021, when I try to play a some videos, I get error message: "an error occurred please try again later". Other videos work fine. Playback on nightly 01-06-2021 worked fine.

I also get two crash reports:
bp-4a70974c-d567-4eda-96c1-f09da0210107
bp-d1397bc4-a566-4b40-8171-caa0e0210107

I will attach log when i launched firefox using "$ MOZ_LOG="PlatformDecoderModule:5" ./firefox"

reproduce:

1. enable media.ffmpeg.vaapi.enabled
2. try and view a youtube video. For example, this one was giving me an error: https://youtu.be/fncYU9Y4LQg

Actual results:

Video does not play and presents an error message.

Expected results:

YouTube video should play

Comment 1

[BugBot [:suhaib / :marco]]

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Comment 2

[Alastor Wu [:alwu]]

I believe that is as same as bug1685436, and the fix would be on the Nightly version soon. To verify that, try to disable media.rdd-process.enabled to see if that works.